Hi Experts After getting an OOM error in production, I reduce the -XX:CMSInitiatingOccupancyFraction to .45 (from .75) and flush_largest_memtables_at to .45 (from .75). But still I am get an warning message in production for the same Cassandra node regarding OOM. Also reduce the concurrent compactions to one.
2012-02-27 08:01:12,913 WARN [GCInspector] Heap is 0.45604122065696395 full. You may need to reduce memtable and/or cache sizes. Cassandra will now flush up to the two largest memtables to free up memory. Adjust flush_largest_memtables_at threshold in cassandra.yaml if you don't want Cassandra to do this automatically 2012-02-27 08:01:12,913 WARN [StorageService] Flushing CFS(Keyspace='WCache', ColumnFamily='WStandard') to relieve memory pressure Could someone please explain why still I am getting GC warnings like above. Many thanks. -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Cassndra-1-0-6-GC-query-tp7323457p7323457.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
